The Office of the National Security Adviser (ONSA) has asked former Kaduna governor Nasir El-Rufai to submit any evidence supporting his claim that the office procured thallium sulphate, a highly toxic substance.
In a letter dated February 13, 2026, ONSA denied the allegation and said it had refe
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Oluwatosin Ogunjuyigbe
Oluwatosin Ogunjuyigbe is a writer and journalist who covers business, finance, technology, and the changing forces shaping Nigeria’s economy. He focuses on turning complex ideas into clear, compelling stories.
